West Fork Big Creek Dam B-185 Reservoir Report
Last Updated: December 19, 2025
West Fork Big Creek Dam B-185, located in Harrison, Missouri, was completed in 2000 by the USDA NRCS and serves as a vital structure for flood risk reduction along the West Fork Big Creek.
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Summary
This earth dam stands at 30 feet in height and stretches 502 feet in length, with a storage capacity of 74.9 acre-feet and a drainage area of 130 acres. Despite its low hazard potential, the dam is equipped with uncontrolled spillways and other controlled outlet gates to manage water discharges effectively.
Managed by the local government, West Fork Big Creek Dam B-185 plays a crucial role in safeguarding the surrounding area from potential flooding events. The dam's design, primarily consisting of stone core types and soil foundations, reflects a commitment to structural integrity and safety measures. Although the dam's condition assessment is currently not rated, regular inspections are conducted to ensure its continued functionality and effectiveness in flood risk mitigation efforts.
Overall, West Fork Big Creek Dam B-185 is a significant asset in the region's water resource management infrastructure, with a moderate risk assessment indicating the need for ongoing monitoring and risk management measures. As climate change continues to impact weather patterns, the dam's role in protecting the community from potential flood threats underscores the importance of sustainable water resource management practices in addressing climate-related challenges.
Year Completed |
2000 |
Dam Length |
502 |
Dam Height |
27 |
River Or Stream |
WEST FORK BIG CREEK |
Primary Dam Type |
Earth |
Surface Area |
3 |
Hydraulic Height |
27 |
Drainage Area |
130 |
Nid Storage |
74.9 |
Structural Height |
30 |
Outlet Gates |
Other Controlled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
West Fork Big Creek Dam B-185